Apparatus for distributing feed with a cluster of orifices on a side of the distributor

Abstract

An apparatus comprising a feed distributor comprising a side cluster of orifices instead of or in combination with an end cluster of orifices for distributing hydrocarbon feed into a catalyst stream. A side cluster of orifices in conjunction with an end cluster of orifices on a feed distributor can distribute hydrocarbon feed into a riser over a greater cross-sectional extent enabling emission of smaller droplet sizes which provide better conversion with less coke production.

The invention claimed is: 
     
       1. A system comprising: a reactor and an apparatus for distributing a hydrocarbon feed to a stream of catalyst in the reactor comprising, wherein, the apparatus comprises:
 a feed distributor comprising a barrel; 
 a first cluster of orifices at a first position on said feed distributor; 
 a second cluster of orifices at a second position spaced apart from the first position on said feed distributor; and 
 a first conduit extending from an internal oil pipe, said first conduit having a tip providing said first cluster of orifices and a second conduit extending from said internal oil pipe, said second conduit have a tip providing said second cluster of orifices, 
 wherein said reactor comprises a riser having a wall and said feed distributor protrudes through said wall of said riser. 
 
     
     
       2. The system of  claim 1  wherein said first cluster of orifices and said second cluster of orifices are at different longitudinal positions on said feed distributor. 
     
     
       3. The system of  claim 1  wherein said first cluster of orifices and said second cluster of orifices are at different lateral positions on said feed distributor. 
     
     
       4. The system of  claim 1  wherein said tip of said first conduit comprises an end tip. 
     
     
       5. The system of  claim 4  wherein said first cluster of orifices comprises an end cluster of orifices located on said end tip on an inner end of said feed distributor. 
     
     
       6. The system of  claim 4  wherein said second position is oriented angularly apart from the first position. 
     
     
       7. The system of  claim 4  further comprising said first conduit extending to said end tip providing said first cluster of orifices as an end cluster of orifices. 
     
     
       8. The system of  claim 1  further comprising a hydrocarbon feed supply inlet in communication with said first cluster of orifices and said second cluster of orifices. 
     
     
       9. The system of  claim 8  further comprising a media feed supply inlet in communication with said first cluster of orifices and said second cluster of orifices. 
     
     
       10. The system of  claim 1  wherein said first cluster of orifices are configured to spray in a fan pattern. 
     
     
       11. An apparatus for distributing hydrocarbon feed to a stream of catalyst in a riser reactor comprising:
 the riser reactor; 
 a catalyst inlet in said riser reactor; 
 a feed distributor comprising a barrel having an inner end for distributing feed to the riser reactor; 
 a first cluster of orifices located on a first side tip at a first position on said feed distributor spaced apart from the inner end; and 
 a second cluster of orifices located on a second side tip at a second position spaced apart from said inner end and said first position on said feed distributor. 
 
     
     
       12. The apparatus of  claim 11  further comprising said second cluster of orifices at said second position oriented angularly apart from the first position on said feed distributor. 
     
     
       13. The apparatus of  claim 11  wherein said first cluster of orifices and said second cluster of orifices are located at longitudinally adjacent positions. 
     
     
       14. The apparatus of  claim 11  wherein said first cluster of orifices is located on a lateral side of said feed distributor. 
     
     
       15. The apparatus of  claim 12  wherein said first position defines an angle with the second position. 
     
     
       16. The apparatus of  claim 12  further comprising a first conduit extending from an internal oil pipe, said first conduit having said first side tip providing said first cluster of orifices and a second conduit extending from said internal oil pipe, said second conduit having said second side tip providing said second cluster of orifices. 
     
     
       17. An apparatus for distributing feed to a reactor riser comprising:
 a first level of feed distributors including a first feed distributor comprising a first number of clusters of orifices for distributing feed to the riser; and 
 a second level of feed distributors including a second feed distributor comprising a second number of clusters of orifices for distributing feed to the riser, the second number being greater than the first number and the second level being higher than the first level in the riser. 
 
     
     
       18. The apparatus of  claim 17  wherein the first feed distributor comprises a peripheral distributor comprising a first cluster of orifices at a first position on said peripheral distributor and a second cluster of orifices at a second position rotated angularly apart from the first location on said peripheral distributor. 
     
     
       19. The apparatus of  claim 17  wherein the second feed distributor comprises a peripheral, axial distributor comprising a first cluster of orifices at a first position on said peripheral, axial distributor, a second cluster of orifices at a second position rotated angularly apart from the first location on said peripheral, axial distributor and a cluster of orifices on an inner end of said peripheral, axial distributor. 
     
     
       20. The apparatus of  claim 17  further comprising a third level of feed distributors below said first level of distributors comprising a first axial distributor comprising a cluster of orifices on an inner end of said first axial distributor across from a second axial distributor comprising a cluster of orifices on an inner end of said second axial distributor.